Improvement in door-bells



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Letters `Patent No. 82,434, dated September 22, 1868.

IMPROVEMENT IN DOOR-BELLS.

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TO ALL WHOM IT MA'Y CONCERN:

Be Vit known that I, W. H. NICHOLS, of East Hampton, in the county ofMiddlesex, and in the State of Gonnecticut, have invented certainnew-and useful Improvements in Door-Bells; and 'do hereby declare thatthe following is a full, clear, and exact description thereof, referencebeing had to the accompanying drawings, and to the letters of referencemarked thereon.

In the annexed drawings, making part of this specification, A representsa cast-metal plate, to which thek bell is secured, and which has castupon it the centre-post B, to the outer end oi which the bell C isattached, and thev pins D, I, a, L, and M, for purposes which will behereinafter described.

The hell used isthe vordinary silvered and saucer-shaped one, but may beof any desirable shape.

The pin D is surrounded with a coiled-wire spring, E. One end of thisspring lies against the centre-post B, while the other end is free, andis provided with a' hook. G'represcnts a rod, which has a hook formedupon it at each end. One end of this rod connects with the hooked end ofspring E.

H represents a lever, cast in the form represented, with an eye in oneend, which ts over the pin I, with a slot in it near its other end, andwith two lugs, d and e, in which eyes are formed. One end of rod Grhooks into the eye in lug e, and a rod, N, hooks into the eye of lug d,as seen.

K -represents a coiled wire, which surrounds pin a.l One end of thiswire is provided with a bell-hammer, J, while the other end of said wireis made plain and straight, and passes through the slot in the outer endof lever H. A

L and M are pins` which act as stops for the straight end of wire K,which limit its motion in cach direction in which it moves.

To operate this bell, the hand -is placed upon the rod N, and when' itis drawn in one direction, the lever H, acting upon the straight end ofwire K, causes said wire to turn n pon its pin, a, so as to make thehammer J strike against one side of the bell. As soon as the hand isremoved from the rod N, or it is allowed to movel backward, the springE, acting through connecting-rod G, causes the lever H to move backward,and, operating the wire K in an opposite direction, causes the hammer tostrike against: the other side of`the bell. Thus, by drawing the rod N,and then letting it go suddenly, the hammer makes two strokes upon thebell.

.Having thus fully described vmy invention, what I claim as new, anddesire to secure by Letters Patent, is-

vThe lever H, 'pivoted to the plate A at one end, and provided with aslot at its other, through which one and of the hammer-wire passes, saidlever being provided with lugs d and e, by means of which it isconnected to the spring E and to the bell-rod N; the lug d, to which therod N is attached, being centrally located upon the lever,` tofacilitate its operation, as and for the purpose specified. i

, In testimony that Il claim the foregoing, I have hereunto set my hand,this first day of January, 1868.

'W. H. NICHOLS.

v'Witnesses; p

C. 0. SEARS, F. KNnAss.

